ARS Trunks at Capacity

[deck02]

In most of our PBX's, there is a large number of trunk groups that are consistantly at capacity. When I mention this to our 'engineers', they state that it is OK because the calls will over flow to another trunk group via ARS. I can not beleive that this over flow situation would be OK. I thought overflow was a backup to the primary path. There must be some derogatory impact on the switch or the call handling. Please give me your opinions.

 

[bwilch]

Actually the "overflow" is done through the routing pattern. There isn't really a negative to this, due to the fact it's just a route the call is placed on to go outbound. Typically I've setup overflows for local and LD circuits, because the majority of switches I'm dealing with are on a smaller scale, but I wouldn't be concerned if I had to set it up as the primary way for a call to be handeled.

 

[orypecos]

This is a normal way to set up trunks. Usually u have the calls go out the cheapest trunk first, and then if that trunk is full, the call rolls over to the other trunk. Some times trunks are set up to be emergency back up use. Such as if u have a T-1 trunk that is very cheap, but goes down occasionally. Then u have maybe a analog trunk as a backup that has less members,but at least gives u some trunks to call out on.